Tag Archives: context-window

MCP Server Token Costs in Claude Code: Full Breakdown

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TL;DR: Every MCP server you connect to Claude Code silently costs tokens on every single message, even when idle. A typical 4-server setup runs about 7,000 tokens of overhead. Heavy setups with 5+ servers can burn 50,000+ tokens before you type your first prompt. Here’s the exact cost of every tool across four common MCP servers. Why MCP Servers Cost Tokens MCP (Model Context Protocol) servers let Claude Code interact with external tools: browse the web, query databases, send emails,

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Claude Code /context Command: See Exactly Where Your Tokens Go

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TL;DR: Type /context in Claude Code to see a full breakdown of where your context window tokens are being spent. It shows system overhead, MCP tools, memory files, conversation history, and free space. Use it to find bloated MCP servers, oversized CLAUDE.md files, and know when to run /compact. What Is /context? If you’ve ever had a Claude Code session start strong and then slowly degrade, the context window is probably the reason. Every message you send carries invisible overhead:

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